Avocado Salad with Buttermilk Dressing Recipe

For Dressing:

• 1tbspshallots,minced
• 2tspdijon mustard
• 2tbspwhite wine vinegar
• 6tbspbuttermilk,1%
• 2tbspextra virgin olive oil
• ¼tspgarlic powder
• ½tspkosher salt
• pinchblack pepper

For Salad:

• 1headromaine,chopped about 5 cups
• 1medium corn on the cobb,cooked and cut off husk
• 5large grape tomatoes,quartered
• ½large avocado,3oz, sliced
• ¼cupred onion,sliced